James a



(N Model.) l

J. A. GREEN.

LUBRIATOR.

N. Firms. mwumagnpher. wngingm. uc. 4

`JAMEs A. i. GREEN,

NITED STATES PATENT OFFICE. e

LUBRICATOR. i

SPEGIFIATION forming part of Letters Patent No. 288,328, dated November 13, 1883.*` Application med august 27,1853. (No model.)

To all whom it may concern.-

Be it known that I, JAMES A.` GREEN, of Bay City, inthe county of Bay and State of Michigan, have invented new and useful 1111-.

provements in Lubricators; and Ido hereby declare that the following is a full, clear, and exact description thereof, reference being had` to the accompanying drawings, which form a part of this specication. i

This invention relates'tocertain new and useful improvements in lubricators wherein the valve which controls the outlow of the oil is actuated by the motion ofthe part to which it is attached. y

The obj ect ofthe invention is to produce a certainty of action in this class of lubricators and to control theopening of the valve to a greater or less degree, as more or less oil is required.

The inventionconsists in the peculiar con-` struction, combination, and operation of the parts, as more fully hereinafter described.

In the accompanying drawings, which form a part of this specification, and in which my invention is shown in sectionalelevation, A represents a chamber to receive the oil, through the bottom of which is a port for the discharge of the oil, such discharge being` intermittent by the alternate opening andfclosing of the valve B, which is itself set immediately over The upper end of the valve-stem is provided with a spring,'0, the point of resistance of one endbeing a shoulder, a, or pin on the valvestem, and at the other end against the adjacent Wall of the ch amber, and a set-screw, D, is provided, by means of which to regulate the throw of the valve.

A Wrist'pin,E, rigidly secured between` the WallsV of the boX, has sleeved upon it a coun ter-balance,F,provided with atongue, b, which engages with a slotor recess`,c, in the adjoinl ing face of thevalvefstem. Set-screws H, prol jecting through each end ofthe `chamber-walls, i

are employed to regulate the throwof this counterbalance incase it should be found necessary to relievethe strain that might otherwise come upon the Wrist pin, created by the sudden i change of direction in the vthrow of such counf l 5o ter-balance.

`The device being constructed described, e

and attached by the usualconn ections to a gang" saw mill and filled with oil, the sudden change at either end of the stroke ofthe saw basa tendency to send the oil to the opposite end of the chamber, andfor instance, `ifthe mill is at the lower end of the stroke-the sudden change of e the motion inthe opposite direction will, by reason of the greater gravity ofthe counter-balance, cause the overhanging end of it to drop, thereby opening' the valve and allowing an escape of oil, the liow of such oil being regulated f bythe distance to which the valve is set to open. part to which the lubricator is attached overcomes the inertia, the spring upon the stem by its action closes the valve `before the completion of the upward stroke, or nearly so, so that the reversal of the motion at the completion of such upward stroke will produce an actuation` of the counter-balance directly contrary to that already described, so that in the downstroke the valve will be closed. Although described as being attached to lubricate the slides of a gangmill which stand vertical, it is evi- As soon as the upward motion of the dent that the same result would occur when n attached to devices moving horizontally.

What. I. claim as my invention is-fV 1. A lubricator constructed substantially as described, and provided with a counter-balance which engages with the valve-stem, substan-` ing with the valve-stem D, substantially as and for the purposes set forth.

. 4. A lubricator consisting of the oil-reservoir A, valve B, spring C, wrist-pin E, counter-balance F, and. set-screws D H, the parts being constructed, arranged, and operating substantiallyas andforthe purposes described. JAMES A. GREEN.

Witnesses:` I

` l E. S. SPRAGUE, E. SCULLY. 

